Thank you. This worked fine for me. However, the changes have to be made to both reportservice and batchreportservice. This Cognos KB article is helpful too: https://www.ibm.com/support/knowledgecenter/en/SSEP7J_11.0.0/com.ibm.swg.ba.cognos.ug_cra.doc/t_config_lgwrkst_ex.html